A girl who went to an all-girls school to check on her childhood friend who had become a shut-in after being ridiculed for being a virgin. She intended to comfort him, but with a careless remark, she inadvertently hurt him and felt responsible. She thought, "That's right! He's ridiculed because he's a virgin! If I help him practice sex and he gets better, he'll gain confidence!" Unexpected developments! What is this!?